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**Charles Lewis Radin** is an American mathematician, known for his work on aperiodic tilings and in particular for defining the pinwheel tiling and (with John Horton Conway) the quaquaversal tiling.^{[1]}

Radin did his undergraduate studies at City College of New York, graduating in 1965,^{[2]} and then did his graduate studies at the University of Rochester, earning a Ph.D. in 1970 under the supervision of Gérard Emch.^{[2]}^{[3]} Since 1976 he has been on the faculty of the University of Texas at Austin.

In 2012 he became a fellow of the American Mathematical Society.^{[4]}

- Radin, Charles; Wolff, Mayhew (1992), "Space tilings and local isomorphism",
*Geometriae Dedicata***42**(3): 355–360, doi:10.1007/BF02414073, MR 1164542. - Radin, Charles (1994), "The pinwheel tilings of the plane",
*Annals of Mathematics*, Second Series**139**(3): 661–702, doi:10.2307/2118575, MR 1283873. - Conway, John H.; Radin, Charles (1998), "Quaquaversal tilings and rotations",
*Inventiones Mathematicae***132**(1): 179–188, doi:10.1007/s002220050221, MR 1618635. - Radin, Charles (1999),
*Miles of Tiles*, Student Mathematical Library**1**, Providence, RI: American Mathematical Society, ISBN 0-8218-1933-X, MR 1707270.

**^**Stewart, Ian (September 24, 1994), "Bathroom tiling to drive you mad",*New Scientist*.- ^
^{a}^{b}Curriculum vitae, retrieved 2013-06-09. **^**Charles Radin at the Mathematics Genealogy Project.**^**List of Fellows of the American Mathematical Society, retrieved 2013-06-09.